1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
slava [35]
1 year ago
13

What important milestone occurred as a result of the Soviets' use of the R-7

Physics
2 answers:
AleksAgata [21]1 year ago
4 0

Answer:

d

Explanation:

zavuch27 [327]1 year ago
4 0

Answer:

Its B i got it right

Explanation:

You might be interested in
A bullet with an initial kinetic energy of 400 J strikes a wooden block where a 8000 N resistive force stops the bullet. What is
Sindrei [870]

Answer:

d = 0.05 [m] = 50 [mm]

Explanation:

We must remember the principle of conservation of energy which tells us that energy is transformed from one way to another. For this case, the initial kinetic energy is transformed into useful work that is equal to the product of force by distance.

E_{k}=F*d\\400 = 8000*d\\d = 0.05 [m] = 50 [mm]

5 0
2 years ago
Two trains are traveling side-by-side along parallel, straight tracks at the same speed. In a time t, train A doubles its speed.
sergij07 [2.7K]

Answer:

derdddrdickdd

Explanation:

3 0
3 years ago
If a car increases its velocity from zero to 60 m/s in 10 seconds, its acceleration is
andrezito [222]
We know that a=vf_vi/t equals equation "a" . Where a is the acceleration of the body , vf is the final velocity , vi is the initial velocity and t is equal to time . Since vi equals o m/s , vf equals to 60 m/s and t equals 10 s. Put in equation "a". a=60-0/10 =6m/s2
5 0
3 years ago
How do you find the speed of an electromagnetic wave? Multiply the wavelength by the frequency. Dvide the frequency by the wavel
Leokris [45]

Answer:

Multiply the wavelength by the frequency.

Explanation:

The velocity of a wave is the frequency times the wavelength.

8 0
3 years ago
What is one of the earliest ways that ancient peoples produced light?
VARVARA [1.3K]

Answer:

Candles

Explanation:

The answer is the first option or "candles." In ancient times the people would lit candles and place them in difference places in their homes, temples, etc... to produce light. It's not option B because light emitting diodes are used to light up toys and such which weren't invented in ancient times. It's not option C because fluorescent bulbs  are long light bulbs used to light up huge spaces without as many light bulbs which were again not invented at the time, and it's also not option D because incandescent bulbs are you usual light bulbs which weren't invented at the time.

Hope this helps.

4 0
2 years ago
Other questions:
  • Is it correct to say that constant speed = 0 acceleration = no resultant force?
    13·1 answer
  • What do radio waves carry
    7·2 answers
  • Someone please help me!!!!!
    7·1 answer
  • Which federal agency protects ecosystems and supervisors public access the forests
    7·2 answers
  • I). Mechanical energy is the sum of potential energy and kinetic energy in an object that is used to do work.
    12·1 answer
  • A cargo elevator on Earth (where g = 10 m/s2) lifts 3000 kg upwards by 20 m. 720 kJ of electrical energy is used up in the proce
    11·1 answer
  • Use one of the following formulas to solve distance:
    13·1 answer
  • A ball is dropped from a height of 1m. If the coefficient of restitution between the ball and the surface is 0.6, what is the he
    10·1 answer
  • Explain how do single fixed and single movable Pulley make our work easier ​
    9·1 answer
  • if a horse exerts a pulling force on a cart, is the reaction force the force of friction between the horse's feet and the road?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!